Showing posts with label Richard Dawkins - Enemies of Reason. Show all posts
Showing posts with label Richard Dawkins - Enemies of Reason. Show all posts

Wednesday, 22 August 2007

Richard Dawkins "Enemies of Reason" (2 of 2)

link from RichardDawkins.net

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Enemies of Reason by Richard Dawkins - review by Sue Blackmore

reposted from Guardian

Sue Blackmore

Tax the homeopaths

Revenues from alternative therapies might free up NHS doctors to offer what really does work for patients - time and care.

What are we going to do about the scam of homeopathy? As Richard Dawkins proclaimed, in the second of his "Enemies of Reason" series, all the evidence shows that homeopathic remedies are nothing but water and, as you'd expect of a drink of water, the only effect they have is a placebo. But it was much less fun to see Dawkins tackling this topic than it was to see him take on astrology, spirit guidance and crystal balls the previous week. The reason, I think, is not just that serious health issues are involved, but that the millions of people who buy homoeopathic remedies really do feel better for them. It might help to tell people how crazy it is to believe in newspaper astrologers or crystals, but it won't help telling them that homeopathy doesn't really do what it claims, or that it's entirely based on a discredited 18th century system, when they actually do get better.

Dawkins revealed three reasons why they get better. First, alternative therapists often spend an hour with their patients, getting to know them, discussing their problems, and generally taking an interest in their lives and troubles; by contrast NHS GPs can only spend on average eight minutes with each patient. Second, alternative therapists often touch, stroke and caress their patients, with the explanation that they are aligning the chakras, releasing the energies, or feeling the blockages. Their explanations are false but touch itself can have a wonderfully soothing and relaxing effect that promotes healing. GPs, bound by having to tell the truth and by rules of propriety, cannot use such lies and cannot stroke and soothe their patients even if they wish to.

Third, there is the whopping great placebo effect, induced by the way remedies are marketed, and by the power of the therapist to convince patients of the effects. Here is the worst problem for real doctors. Effective medicine has always depended on placebo effects and self-healing, but using the placebo effect means effectively lying, and modern medicine has no place for systematic lying. Quite rightly, GPs are trained to tell the truth about a medicine's effectiveness, explaining the likely outcomes, the side effects, and the plusses and minuses. For many self-limiting or stress-induced illnesses the best treatment may easily be a chalk pill along with a convincing statement that it will work wonders given by someone you trust - but GPs cannot use this wonder non-drug. Alternative therapists don't have to do tell the truth.

They can tell whatever lies they like about hidden lines of force, invisible energies, and healing colours, and so they have appropriated the powers of the placebo effect to themselves.

But Dawkins missed a trick here. Money. Placebo effects increase not only with the convincingness of the explanation and the perceived power of the therapist, but with their cost. It's cognitive dissonance. If you get something for free you value it less than if you have to pay a lot for it. In a country with a national health service, with most treatments free, doctors can't use that effect either, but the alternative therapists do. People who buy their own treatments are likely to find they get better quicker than those who get them for free.

So what to do? TV programmes exposing the fraud will have little effect, and we can't ban people from selling little bottles of water. We can do our best to prevent homeopathy being given on the NHS, but there are many convinced believers who will fight hard to keep it.

So here's a thought. How about putting a heavy tax on homoeopathic remedies? With the millions sold each year even a few pounds a bottle would raise plenty of funds. The placebo effect would be strengthened, and the money raised could be used to provide what really matters - time that the doctor can spend with her patients.

I'm sure this is not a magic pill either, but we have to do something to bring back the power of time, kindness, and the placebo effect into real medicine instead of leaving it to the alternatives.

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Thursday, 16 August 2007

Richard Dawkins 'Enemies of Reason' - Monday 13th August - Summary

Astrology

A full quarter of the British population claim to believe in astrology while astrological horoscopes get far more newspaper column inches than science.

Neil Spencer
Richard Dawkins begins his journey by questioning this irrational institution embedded in our culture. He tackles the Observer's astrologer, Neil Spencer [pictured], on how the movement of planets could possibly signify petty developments in our love life or career, and compares the thin pickings of astrology with the real science of astronomy that is revealing the true grandeur of the Cosmos.

The paranormal

Half the British population now claim to believe in paranormal phenomena. Psychics are cluttering our TV schedules, flogging readings on the net and, increasingly, blossoming on our high streets. After garnering tips on psychics' entirely earthly trade secrets from the illusionist Derren Brown, Richard attends a s?ance and confronts the medium, Craig Hamilton-Parker, on the psychological damage his unproven claims may have on bereaved people who desperately want to believe what feels good.

Time and again, the interviewees that Richard Dawkins encounters appeal to personal revelation or second-hand anecdote to justify their belief. Richard Dawkins now explains why this cannot be the basis for rational knowledge. He compares how science unravelled the mystery of echo location in bats in the 1940s through rigorous experiment and mutually supporting results to a paranormal phenomenon such as water divining. Psychic detection of water through dowsing isn't inherently implausible – but, as Richard discovers when he attends a double blind trial supervised by the paranormal investigator Professor Chris French, it never works when a rigorous experiment is conducted.


The evidence for the spirit world or psychic phenomena is simply not robust and repeatable. Rather, it's Will-o'-the-wisp. The more science looks at it, the weaker it becomes.

Tarot card reader

Looking to the past

So why do people still irrationally cling on to unproven beliefs? Richard turns to the origins of superstition in our past. He looks at our pre-disposition to seek pattern in the randomness of nature, a survival mechanism from our distant evolutionary past.

He also explores how our ancestors imbued 'spiritual quality' to inanimate objects – and many people still do, including the New Age guru, Satish Kumar, who argues that a rock or a tree have intrinsic 'spirit'. Richard puts the case for reality that can be observed and tested – the objective wonders that science has revealed.

Once society exalted scientists as heroes. Their insights fuelled tangible progress, from clean water to networked computing, self-evident benefits that we now take for granted.

Richard Dawkins

Yet as science has moved on, it's become more complex and difficult to grasp. It's easier to portray scientists as the people who bring us 'Frankenstein food', pollute the environment or conduct sinister experiments on defenceless little animals.


Prejudice in schools

Dawkins argues that prejudice against science is evident in schools. Physics A' levels have halved in the last 25 years, chemistry fallen by more than a third. University departments are closing all round the country.

He lays the blame with 'relativist' thinkers who have made it fashionable in education to teach students to value private feeling more highly than evidence-based reason.

He challenges the sociologist Steve Fuller who claims the internet is opening up science and evidence and this is no bad thing...


Wikipedia

For Richard Dawkins, 'Wikipedia world' presents both great opportunity and huge danger. The impersonal algorithms of internet search engines do not weed out robust evidence from unsourced, uncorroborated assertion. Paranoid conspiracy theories circulate on the web unchallenged, from harmless fun about fake moon landings to downright insidious lies about 9/11 or the highly damaging but ultimately discredited scare over the MMR vaccine. This, argues Dawkins, is where the irrational mindset, the world of private hunches and no respect for evidence, can lead us.

Medicine under attack

Today science is treated with suspicion, perhaps born of fear and even medical advance is challenged by the march of irrational belief.

While we indulge unproven healing 'magic', tried and tested scientific medicine is under attack. Media 'causes celebres' – from side effects to superbugs – have bred widespread cynicism about medical progress.

The danger of devaluing evidence has never been more apparent than when one survey of twelve children wrongly linked MMR vaccine with autism and yet prompted hundreds of thousands of parents to opt their children out of entirely sensible inoculations to ward off dangerous diseases.

Where once there was reason, now there is confusion...

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Richard Dawkins 'Enemies of Reason' - Monday 13th August - VIDEO

source: Channel 4

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